159991-80-7Relevant articles and documents
Auxiliary Accelerated Reactions: Transition-metal Promoted Diels-Alder Cycloadditions
Westwell, Andrew D.,Williams, Jonathan M. J.
, p. 2501 - 2502 (1994)
Rate enhancements for the Diels-Alder reaction of (2-pyridyl)methyl propenoate 2 over benzyl propenoate 1 are observed in the presence of transition-metal promoters, particularly copper(II) and zinc(II) triflate.
In situ generated "lanthanum(iii) nitrate alkoxide" as a highly active and nearly neutral transesterification catalyst
Hatano, Manabu,Kamiya, Sho,Ishihara, Kazuaki
supporting information, p. 9465 - 9467 (2012/10/29)
In situ generated lanthanum(iii) nitrate alkoxide is a highly active and nearly neutral transesterification catalyst, which can promote non-epimerized transesterification of α-substituted chiral carboxylic esters under reflux conditions.
Auxiliary accelerated reactions: Towards the use of catalytic chiral auxiliaries
Westwell, Andrew D.,Williams, Jonathan M. J.
, p. 13063 - 13078 (2007/10/03)
In competition experiments, the acceleration of reactivity of alkenes tethered to pyridyl groups compared with the corresponding alkenes tethered to phenyl groups in the presence of transition metals was demonstrated for two reaction types: Diels-Alder cycloaddition of enoate esters and catalytic hydrogenation of allylic and homoallylic ethers. The rate accelerations observed are of crucial importance in the development of a new concept for asymmetric catalysis: chiral auxiliaries which can function in a catalytic manner.
